In one embodiment, a method of tagging content can include: accessing a frame of a digital media production; identifying an object for tagging within the frame; defining a metadata tag for the object; and storing the metadata tag in association with the identified object and the frame in the digital media production. In one embodiment, a method of substituting content can include: receiving tagged digital media in a controller; identifying an object for substitution by searching through objects and metadata tags in the tagged digital media; retrieving a substitute object using the controller; and re-rendering the tagged digital media to produce a customized digital media using the substitute object in place of the identified object.